Climatological Report (Annual)
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893
CXUS55 KBYZ 011912
CLALVM

CLIMATE REPORT
NATIONAL WEATHER SERVICE BILLINGS MT
1210 PM MST FRI JAN 01 2021

...................................

...THE LIVINGSTON MT CLIMATE SUMMARY FOR THE YEAR OF 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART
                VALUE   DATE(S)   VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH            105   08/05/1961
 LOW             -41   12/24/1983
HIGHEST          102   09/05
LOWEST            -9   01/15
AVG. MAXIMUM    60.2               58.1     2.1
AVG. MINIMUM    33.4               31.5     1.9
MEAN            46.8               44.8     2.0
DAYS MAX >= 90    37                       18.6
DAYS MAX <= 32    34                       -1.1
DAYS MIN <= 32   159                      -13.8
DAYS MIN <= 0      8                       -7.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM       18.11   2019
 MINIMUM        8.62   2012
TOTALS         11.09              14.81   -3.72
DAYS >= .01      103                       -0.3
DAYS >= .10       34                       -8.0
DAYS >= .50        2                       -4.2
DAYS >= 1.00       0                       -1.1


DEGREE DAYS
HEATING TOTAL   6894               7603    -709
COOLING TOTAL    339                229     110

FREEZE DATES
RECORD
 EARLIEST     08/17/2002
 LATEST       06/29/1968
EARLIEST                        09/08
LATEST                          05/11
................................................

WIND (MPH)
AVERAGE WIND SPEED              15.2
HIGHEST WIND SPEED/DIRECTION    71/210    DATE  11/13
HIGHEST GUST SPEED/DIRECTION    83/210    DATE  11/13


WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             31     MIXED PRECIP               0
HEAVY RAIN               11     RAIN                      26
LIGHT RAIN               99     FREEZING RAIN              0
LT FREEZING RAIN          3     HAIL                       0
HEAVY SNOW               21     SNOW                      28
LIGHT SNOW               92     SLEET                      0
FOG                      86     FOG W/VIS <= 1/4 MILE     20
HAZE                     47

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

&&

THIS IS AN AUTOMATED...UNATTENDED WEATHER STATION AND MAY
UNDERESTIMATE WINTER PRECIPITATION.

...2020 YEAR IN REVIEW FOR LIVINGSTON...

BELOW IS A SUMMARY OF THE TEMPERATURE AND PRECIPITATION
STATISTICS FOR LIVINGSTON FOR 2020. ALL TEMPERATURES ARE IN DEGREES
FAHRENHEIT AND ALL PRECIPITATION AMOUNTS ARE IN INCHES. NORMALS
ARE 30 YEAR AVERAGES CALCULATED FROM 1981 TO 2010. MONTHLY AND ANNUAL
RANKINGS FOR PRECIPITATION AND TEMPERATURES USE A PERIOD
OF RECORD THAT STARTED IN JULY 1948 AT OR NEAR THE LIVINGSTON AIRPORT.

NUMBERS DENOTED WITH AN * IS MISSING DATA IN THE CALCULATION.

... MONTHLY PRECIPITATION...

 MONTH   2020 VALUES  NORMALS    DEPARTURE  RANKING

JANUARY      0.26     0.49       -0.23      TIED FOR THE 23RD DRIEST OUT OF 72 YEARS
                                            (RECORD DRIEST WAS 0.01 TIED IN 2009)
                                            (DRIEST SINCE 0.21 IN 2019)

FEBRUARY     0.51     0.50       +0.01      TIED FOR THE 25TH WETTEST OUT OF 72 YEARS
                                            (RECORD WETTEST WAS 1.76 IN 1986)
                                            (WETTEST SINCE 0.91 IN 2017)

MARCH        1.20     0.84       +0.36      TIED FOR THE 14TH WETTEST OUT OF 72 YEARS
                                            (RECORD WETTEST WAS 2.21 IN 1967)
                                            (WETTEST SINCE 1.21 IN 2017)

APRIL        0.64     1.77       -1.13      10TH DRIEST OUT OF 72 YEARS
                                            (RECORD DRIEST WAS 0.23 IN 1980)
                                            (DRIEST SINCE 0.45 IN 2013)

MAY          1.53     2.66       -1.13      12TH DRIEST OUT OF 72 YEARS
                                            (RECORD DRIEST WAS 0.30 IN 1958)
                                            (DRIEST SINCE 0.55 IN 2001)

JUNE         2.33     2.39       -0.06      TIED FOR THE 32ND WETTEST OUT OF 72 YEARS
                                            (RECORD WETTEST WAS 6.77 IN 1992)
                                            (WETTEST SINCE 3.76 IN 2018)

JULY         0.69     1.47       -0.78      21ST DRIEST OUT OF 73 YEARS
                                            (RECORD DRIEST WAS T IN 1991)
                                            (DRIEST SINCE 0.42 IN 2017)

AUGUST       0.71     1.11       -0.40      27TH DRIEST OUT OF 73 YEARS
                                            (RECORD DRIEST WAS 0.06 IN 2001)
                                            (DRIEST SINCE 0.68 IN 2017)

SEPTEMBER    0.31     1.21       -0.90      7TH DRIEST OUT OF 73 YEARS
                                            (RECORD DRIEST WAS 0.04 IN 1964)
                                            (DRIEST SINCE 0.10 IN 2012)

OCTOBER      2.12     1.26       +0.86      10TH WETTEST OUT OF 73 YEARS
                                            (RECORD WETTEST WAS 3.47 IN 1975)
                                            (WETTEST SINCE 3.32 IN 2016)

NOVEMBER     0.59     0.59       +0.00      MEDIAN OUT OF 73 YEARS
                                            (WETTEST 2.40-1973/DRIEST 0.06-1954)

DECEMBER     0.20     0.52       -0.32      TIED FOR THE 10TH DRIEST OUT OF 73 YEARS
                                            (RECORD DRIEST WAS T IN 2009)
                                            (DRIEST SINCE 0.05 IN 2019)

YEAR        11.09    14.81       -3.72      7TH DRIEST OUT OF 73 YEARS
                                            (RECORD DRIEST WAS 5.39 IN 1948)
                                            (DRIEST SINCE 9.18 IN 2012)

... 2020 TOP 3 DAILY MAXIMUM PRECIPITATION...

1 - 0.85   MAY 23
2 - 0.64   JUNE 28
3 - 0.40   OCTOBER 17

ALL TIME DAILY PRECIPITATION RECORD...2.90 ON JUNE 16 1992

... 2020 BROKEN OR TIED DAILY PRECIPITATION RECORDS...

0.17 ON MARCH 15 (OLD RECORD 0.16 IN 1982)
0.64 ON JUNE 28 (OLD RECORD 0.44 IN 1995)
0.33 ON NOVEMBER  7 (TIED RECORD IN 1995)

NOTE: SINCE THE LATE 1990S...LIVINGSTON BECAME AN AUTOMATED AND UNATTENDED
WEATHER STATION. PRECIPITATION AMOUNTS IN THE WINTER MAY BE UNDERESTIMATED.

... AVERAGE TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      32.1      27.0      +5.1      TIED FOR THE 14TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 37.5 IN 1986)
                                           (WARMEST SINCE 32.6 IN 2015)

FEBRUARY     29.3      29.1      +0.2      36TH COLDEST OUT OF 72 YEARS
                                           (RECORD COLDEST WAS 11.5 IN 2019)
                                           (COLDEST SINCE 11.5 IN 2019)

MARCH        35.0      35.6      -0.6      35TH COLDEST OUT OF 72 YEARS
                                           (RECORD COLDEST WAS 22.0 IN 1965)
                                           (COLDEST SINCE 23.4 IN 2019)

APRIL        41.1      42.1      -1.0      TIED FOR THE 23RD COLDEST OUT OF 72 YEARS
                                           (RECORD COLDEST WAS 33.7 IN 1975)
                                           (COLDEST SINCE 39.7 IN 2018)

MAY          52.2      50.6      +1.6      TIED FOR THE 27TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 60.0 IN 1958)
                                           (WARMEST SINCE 55.6 IN 2018)

JUNE         59.9      58.7      +1.2      30TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 68.4 IN 1988)
                                           (WARMEST SINCE 60.3 IN 2017)

JULY         67.3      66.9      +0.4      28TH COLDEST OUT OF 73 YEARS
                                           (RECORD COLDEST WAS 58.1 IN 1993)
                                           (COLDEST SINCE 66.1 IN 2019)

AUGUST       69.1      65.6      +3.5      15TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 71.6 IN 2000)
                                           (WARMEST SINCE 71.3 IN 2013)

SEPTEMBER    59.2      55.8      +3.4      TIED FOR THE 21ST WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 64.2 IN 1998)
                                           (WARMEST SINCE 60.8 IN 2015)

OCTOBER      43.0      45.1      -2.1      14TH COLDEST OUT OF 73 YEARS
                                           (RECORD COLDEST WAS 37.0 IN 1969)
                                           (COLDEST SINCE 37.9 IN 2019)

NOVEMBER     39.1      34.0      +5.1      16TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 49.0 IN 1999)
                                           (WARMEST SINCE 43.2 IN 2016)

DECEMBER     34.2      26.1      +8.1      6TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 35.8 IN 1957)
                                           (WARMEST SINCE 34.9 IN 1999)

YEAR         46.9      44.8      +2.1      TIED FOR THE 14TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 49.6 IN 1999)
                                           (WARMEST SINCE 47.9 IN 2016)

... AVERAGE HIGH TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      40.9      36.9      +4.0      15TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 48.2 IN 1981)
                                           (WARMEST SINCE 43.7 IN 2015)

FEBRUARY     39.0      39.8      -0.8      ON THE MEDIAN OUT OF 72 YEARS
                                           (WARMEST 51.2-1991/COLDEST 20.5-2019)

MARCH        45.5      47.5      -2.0      35TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 58.2 IN 2015)
                                           (WARMEST SINCE 46.5 IN 2018)

APRIL        54.8      55.0      -0.2      29TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 69.0 IN 1987)
                                           (WARMEST SINCE 55.9 IN 2017)

MAY          64.9      64.6      +0.3      TIED FOR THE 28TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 74.9 IN 1958)
                                           (WARMEST SINCE 68.7 IN 2018)

JUNE         74.9      73.4      +1.5      TIED FOR THE 26TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 85.6 IN 1988)
                                           (WARMEST SINCE 75.9 IN 2017)

JULY         86.7      84.6      +2.1      27TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 93.2 IN 2007)
                                           (WARMEST SINCE 92.0 IN 2017)

AUGUST       88.8      84.0      +4.8      TIED FOR THE 9TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 91.0 IN 2000)
                                           (WARMEST SINCE 90.0 IN 2013)

SEPTEMBER    77.9      72.1      +5.8      TIED FOR THE 10TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 81.6 IN 1998)
                                           (WARMEST SINCE 78.0 IN 2015)

OCTOBER      56.2      58.5      -2.3      17TH COLDEST OUT OF 73 YEARS
                                           (RECORD COLDEST WAS 45.8 IN 1969)
                                           (COLDEST SINCE 49.2 IN 2019)

NOVEMBER     49.5      44.0      +5.5      13TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 60.5 IN 1999)
                                           (WARMEST SINCE 54.8 IN 2016)

DECEMBER     43.2      35.5      +7.7      TIED FOR THE 4TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 44.9 IN 1980)
                                           (WARMEST SINCE 43.3 IN 1999)

YEAR         60.3      58.1      +2.2      11TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 63.2 IN 1999)
                                           (WARMEST SINCE 60.9 IN 2016)

... 2020 TOP 3 WARMEST DAILY HIGH TEMPERATURES...

1 - 102   SEPTEMBER  5
2 - 101   AUGUST 17
3 - 99   JULY 22

ALL TIME RECORD WARMEST DAILY HIGH TEMPERATURE...105 ON AUGUST  5 1961

... 2020 BROKEN OR TIED WARMEST DAILY HIGH TEMPERATURE RECORDS...

68 ON MARCH  6 (OLD RECORD 67 IN 1987)
65 ON MARCH  7 (OLD RECORD 61 IN 2007)
101 ON AUGUST 17 (OLD RECORD 95 IN 1996)
96 ON AUGUST 18 (TIED RECORD IN 1948)
102 ON SEPTEMBER  5 (OLD RECORD 95 IN 1998)
94 ON SEPTEMBER 14 (TIED RECORD IN 1948)
84 ON OCTOBER  6 (OLD RECORD 83 IN 1980)
84 ON OCTOBER  8 (OLD RECORD 83 IN 1952)
74 ON NOVEMBER  2 (OLD RECORD 69 IN 1965)
74 ON NOVEMBER  3 (OLD RECORD 72 IN 1962)
71 ON NOVEMBER  4 (OLD RECORD 70 IN 2001)
73 ON NOVEMBER  5 (OLD RECORD 72 IN 1975)
54 ON DECEMBER  7 (TIED RECORD IN 1981)
61 ON DECEMBER  8 (OLD RECORD 58 IN 1957)
62 ON DECEMBER  9 (OLD RECORD 60 IN 1981)

... 2020 TOP 3 COLDEST DAILY HIGH TEMPERATURES...

1 - 8   JANUARY 14
2 - 9   OCTOBER 25
3 - 18   MARCH 15

ALL TIME RECORD COLDEST DAILY HIGH TEMPERATURE...-26 ON FEBRUARY  3 1989

... 2020 BROKEN OR TIED COLDEST DAILY HIGH TEMPERATURE RECORDS...

18 ON MARCH 15 (OLD RECORD 22 IN 1958)
27 ON APRIL 12 (OLD RECORD 28 IN 1957)
27 ON OCTOBER 18 (OLD RECORD 32 IN 1949)
25 ON OCTOBER 22 (OLD RECORD 31 IN 2002)
23 ON OCTOBER 23 (OLD RECORD 27 IN 2002)
20 ON OCTOBER 24 (OLD RECORD 31 IN 1954)
9 ON OCTOBER 25 (OLD RECORD 28 IN 1969)

... AVERAGE LOW TEMPERATURES...

 MONTH   2020 VALUES  NORMALS   DEPARTURE  RANKING

JANUARY      23.3      17.2      +6.1      TIED FOR THE 12TH WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 28.8 IN 1986)
                                           (WARMEST SINCE 23.9 IN 2014)

FEBRUARY     19.6      18.3      +1.3      36TH COLDEST OUT OF 72 YEARS
                                           (RECORD COLDEST WAS 2.5 IN 2019)
                                           (COLDEST SINCE 2.5 IN 2019)

MARCH        24.4      23.7      +0.7      33RD WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 32.7 IN 1986)
                                           (WARMEST SINCE 29.9 IN 2017)

APRIL        27.4      29.1      -1.7      TIED FOR THE 9TH COLDEST OUT OF 72 YEARS
                                           (RECORD COLDEST WAS 25.4 IN 1975)
                                           (COLDEST SINCE 26.1 IN 2018)

MAY          39.5      36.6      +2.9      TIED FOR THE 23RD WARMEST OUT OF 72 YEARS
                                           (RECORD WARMEST WAS 45.1 IN 1958)
                                           (WARMEST SINCE 42.4 IN 2018)

JUNE         44.9      44.0      +0.9      27TH COLDEST OUT OF 72 YEARS
                                           (RECORD COLDEST WAS 40.9 IN 1951)
                                           (COLDEST SINCE 44.5 IN 2019)

JULY         47.8      49.2      -1.4      3RD COLDEST OUT OF 73 YEARS
                                           (RECORD COLDEST WAS 46.2 IN 1993)
                                           (COLDEST SINCE 46.2 IN 1993)

AUGUST       49.3      47.2      +2.1      TIED FOR THE 34TH COLDEST OUT OF 73 YEARS
                                           (RECORD COLDEST WAS 43.4 IN 2002)
                                           (COLDEST SINCE 48.6 IN 2019)

SEPTEMBER    40.5      39.4      +1.1      26TH COLDEST OUT OF 73 YEARS
                                           (RECORD COLDEST WAS 34.4 IN 1965)
                                           (COLDEST SINCE 39.0 IN 2018)

OCTOBER      29.8      31.6      -1.8      6TH COLDEST OUT OF 73 YEARS
                                           (RECORD COLDEST WAS 25.5 IN 2002)
                                           (COLDEST SINCE 26.6 IN 2019)

NOVEMBER     28.7      23.9      +4.8      TIED FOR THE 21ST WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 37.5 IN 1999)
                                           (WARMEST SINCE 31.6 IN 2016)

DECEMBER     25.1      16.7      +8.4      11TH WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 28.3 IN 1957)
                                           (WARMEST SINCE 25.9 IN 2019)

YEAR         33.4      31.5      +1.9      TIED FOR THE 33RD WARMEST OUT OF 73 YEARS
                                           (RECORD WARMEST WAS 35.9 IN 1999)
                                           (WARMEST SINCE 34.8 IN 2016)

... 2020 TOP 3 WARMEST DAILY LOW TEMPERATURES...

1 - 64   JULY 29
2 - 62   AUGUST  1
3 - 60   JULY 23

ALL TIME RECORD WARMEST DAILY LOW TEMPERATURE...73 ON AUGUST 10 2000

... 2020 BROKEN OR TIED WARMEST DAILY LOW TEMPERATURE RECORDS...

45 ON FEBRUARY  1 (OLD RECORD 44 IN 1995)
59 ON MAY 31 (OLD RECORD 53 IN 1981)
55 ON NOVEMBER  5 (OLD RECORD 52 IN 1975)
46 ON DECEMBER  8 (OLD RECORD 44 IN 2015)
45 ON DECEMBER 21 (OLD RECORD 43 IN 2005)

... 2020 TOP 3 COLDEST DAILY LOW TEMPERATURES...

1 - -9   JANUARY 15
2 - -7   OCTOBER 26
3 - -7   OCTOBER 25

ALL TIME RECORD COLDEST DAILY LOW TEMPERATURE...-41 ON DECEMBER 24 1983

... 2020 BROKEN OR TIED COLDEST DAILY LOW TEMPERATURE RECORDS...

8 ON APRIL 12 (OLD RECORD 18 IN 1965)
4 ON APRIL 13 (OLD RECORD 12 IN 1986)
15 ON APRIL 16 (OLD RECORD 16 IN 1964)
38 ON JULY 14 (OLD RECORD 40 IN 1977)
37 ON JULY 15 (OLD RECORD 42 IN 1993)
38 ON AUGUST 15 (TIED RECORD IN 2005)
26 ON SEPTEMBER  9 (OLD RECORD 28 IN 1960)
7 ON OCTOBER 22 (OLD RECORD 13 IN 1957)
3 ON OCTOBER 23 (OLD RECORD 9 IN 1957)
6 ON OCTOBER 24 (OLD RECORD 11 IN 1975)
-7 ON OCTOBER 25 (OLD RECORD 12 IN 1997)
-7 ON OCTOBER 26 (OLD RECORD 11 IN 1951)

$$




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